fix: #230 fix a bug which will occur error tip when invite a user into conversation

server/services/core/chat/converse.service.ts

@@ -8,6 +8,7 @@ import {
   call,
   DataNotFoundError,
   NoPermissionError,
+  SYSTEM_USERID,
 } from 'tailchat-server-sdk';
 import type {
   ConverseDocument,
@@ -224,10 +225,13 @@ class ConverseService extends TcService {
 
     const converse = await this.adapter.findById(converseId);
 
+    if (userId !== SYSTEM_USERID) {
+      // not system, check permission
       const memebers = converse.members ?? [];
       if (!memebers.map((member) => String(member)).includes(userId)) {
         throw new NoPermissionError(t('没有获取会话信息权限'));
       }
+    }
 
     return await this.transformDocuments(ctx, {}, converse);
   }